DTC P0336: Crankshaft Position (CKP) Sensor Performance: Description

WARNING: This page is about a different car, the 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

Crankshaft Position (CKP) sensor is connected to Ignition Control (IC) module. CKP sensor is mounted near crankshaft and monitors a toothed crankshaft reluctor wheel mounted to crankshaft. When crankshaft rotates, a signal is induced into CKP sensor. Based upon signal received from CKP sensor, IC module supplies a CKP signal on CKP 7X reference circuit. For each one engine revolution, IC module pulses CKP 7X reference circuit 7 times. Powertrain Control Module (PCM) and Alternate Fuel Engine Control Unit (AF ECM) use CKP 7X signal to determine engine speed, crankshaft position and cylinder misfire condition.

This DTC is used to indicate no CKP reference signal is being monitored by the AF ECM while engine sensor conditions indicate the crankshaft is rotating.